Apparatus for beating gold leaf or sheeds of other metal and sucr like



July 17, 1928.

w. BLACKER I APPARATUS FOR BEATING GOLD LEAF OR SHEETS OF OTHER METAL AND SUCH LIKE Filed June 5, 1925 6 Sheets-Sheet .1

N'v'gNTon-L wil/l'am B/ MW 0 mzafs- Jul l'i lbzs, 1,677513 W. BLACKER APPARATUS FOR BEA'IING- GOLD LEAF ,OR SHEETS OF o'rnzm METAL AND sucu LIKE Filed June 5, 1925 6 sheets-sheet 2 I NV E. NT 0 M/f/lia B/aakcn BY-fiuy,

A TT 0 RN'EYS 6 Sheets-Sheet 3 w. BLACKER Filed June 5, 1

APPARATUS FOR BEATING GOLD LEAF OR SHEETS Of OTHER METAL AND SUCH LIKE vE NTQR flm acktr' WW v ATTORNE July 17, 1928.

1,677,513 w. BLACKER v APPARATUS FOR BEATING' GOLD LEAF OR SHEETS Of OTHER METAL AND SUCH LIKE Filed June 5, 1925 6 Sheets-Sheet 5 Ju ly 17, 1928;

W. BLACKER APPARATUS FOR BEATING GOLD LEAF 0R- SHEETS OF OTHER METAL AND SUCH LIKE Filed June 5, 1925 I 6 Sheets-Sheet 6 l'nv v e N'T on:

FIG. 8

Ln Mwm 0 5 Wm BT mm H Wm Patented July 17, 1928.

UNITED? s r res; PAT! WIL IAM- nmcxan; er smmmmnez; 1 I

APPARATUS FOR BEA'IIING Gomnmu'oR-ssorommammn mn swn m Application-1 filed June s, 1925; Serial no 34 59531 an-ma; irmin- -;n r .;3o,-. 19m;

This; invention concerns an apparatusfor beating gold: leaf or other precious; metals v and such like uses, and concerns thetype of machine wherein a power driven hammer pounds the pad or article on the rotatable block and wherein the blows distributed are, controlledby mechanism actingonthe' hammer asthe pad moves around onitssupport, The. novelty-has referenc tov an improved. automatic hammer mechanismfor the pur pose indicated: wherein. a! simple 1 type I oi cam or profile plate is used to act on. and con:

trol the movable striking; parts of the hammen through: a lever structure with movable fulcrum and to means which allow thesaid, 0am to be driven at a variable speed both with the objectofcontrolling the distribu neet'edi by links or. levers di Ag swivelling;

block d having trunnions d is proviided said trunnions' engaging- .holes in the: levers-60 4, and through a} central opening in\ the block d. passes a rode'witlr upper and lower.

springs e, ef,"- 'the' rod being -p ivoted at a ton lever fiiiulcrumed at; f at! thesideofthemachine said lever having av slot for regue 65 lating .theaactionon' the rod a; The: f-ula crun ed, lever. is worked by; a connecting red ff from arc-rank disc ontheimain driving; shaft 9. Anyother hammer actuating may be.employed which will. meehanicall'y 70 swing. a hammer supported upon-a car rier aruu, p

'IF-hehammer he a must be movable lat-Q i eml-l y' and it moves on the two shafts 0 a f provided, and as and when required by m 75 son oiia pivoted elever h see-Figs. -2 and 5 ),wliich.loosely'engages.ornean itsup; pere'nd ar bar or slide isuitably guided in bearin 's the framework. On: this bar or slide-i (see Fig.'7-)'= is; mounted aboard-e0.

tion ofiblows from the hammer upon: the pad. or equivalent; 1 Y p The attached drawings sulfic'iently illustrate my improvements, and in'lthe draw mgszp I Fig. 1 shows av general side elevation? of the apparatus with. certain of the. parts omitted...

Fig. 2.is also an elevation taken from the oppositesidee i Fig. 3-shows a plan View- Fig.4 is a separatedetail, Vl8W.-

Fig. 4 is also a detail View.

I Fig. 5 shows a front elevation.

Fig. 6 is a rear elevation. r

Fig. 7 is adiagram: of. cam. mechanism andzparzts which co-operate therewith and which are illustrated in other figures- Fig ..8 is adiagramof a squarebeaters-pad and-illustrates one way ofdistributing blowsupon. said pad as same is rotated I. make. use-oi a. proper base or." stand of.

appropriatedesign-and uponthis is mounted av support. or rest. such. as the anvil a. which has. a wooden,. rubber or other receiver or recessed face for. the beaters-pad l? (which as known lsabout 5..1nches.-square), and the anvil; (a islso mounted as'to be revolvable by,

It is shown mounted driving mechanism:

' so astobe capable: of rotation or not and'is indicated; as provided-with a bevel wheel" a driven-by .abevel-v wheel a mounted on? the" shaft 6' supportedin: proper bearings. Any other suitable. form of driving. gear maybe: employed:- to actuate: the rotary anvil.

Upon the same. base.- is mounted the me charlical hammer structure' which may be of! the' type illustratedherein;- having ansarm a carrying? at-upv 0' in'proper position'ov'er". thepadi 1?, the arm a :fitting; bored: slidable and turned Hlshaped boss' marked- '17- which".

, is confined; between; two collarsifliv i 1 The Hjshapedq boss if engages I a pixajection cj on thealowen part otthe bored sli dable socket c .-,.T.he connection. cam-be rend'eredi ino' er ative byjunscrewing the studs i i-the" co lave-g About -the ;centre. .i n theilengthof the lever h;(mvhich-ist f-ulcuulned; at h),' inter connection. is made! by asl-ide motion comvenientlyf consisting of two guided. r'ods- V j, ji andeupon whiolr isfiked a camiibow-l jf.

which workerwith a cam; on cams, andgfor preference, a; cam is, the periphery of which can be varied to vary the distribution of blows" .The --cam ;may be-mounted-to p'ermit of ready change. .Thei functidn ofthe cam kc is to control 'or move the hammer heads apd it does; this by acting; on and thmu ghthe. frulcrurn lever .7a. The; shape of, the cam; and." lever; may vary somewhat" to variously afiecuthe range'bf actions Such" fulcnunedlever- It by its upper endslidably engages and: moves the: bar or i slide: 1', and" the fulcrumedw lever 1 h is acted upon by; a

bowl 1'? .carriedibythe: two guided-rods jn The lever hghas itsfulcrum- .atw Iv upon: a'

movable nut la which1 engages a vertical? screw-threaded shaft h andis 'additionally guided b ,hawrodr It: (seer-Figs, 3-and 5):'or

or otherwise. The purpose of the fulcrumed lever h and movable nut k is that they permit alteration in the ratio of distance between the fulcrum it, thecam 7c and the rod or slide 2', to gradually and automatically add to the amount the hammer head is influenced so as to enlarge the area over which the blowsare struck or distributed.

The top of the screw-threaded spindle k :carries a bevel gear h with which-gears a second bevel wheel h mounted on av shaft 7L This shaft 1L carries'a' ratchet wheel h which is periodically actuated by a pawl h mounted on the bracket it worked by a connecting rod h operated by an excentric 71. on the shaft b whereby the nut h is slowly raised. By disengaging the pawl h 1 and turning backward the hand-wheel h thenut k? may be wound down and the lever 72, re-set, that is, its fulcrum can be carried down to its initial starting point as v1n Fig- 5.

The location of the cam or profile plate Jr is preferably a lateral one and it is shown mounted on the shaft b and actuated by worm gear, a worm wheelie on the shaft 6 being driven by a worm 70 on the auxiliary 7 shaft is.

I actuate the cam or profile plate and the rotary anvil through a variable speed gear and in thedrawings (Figs. 3 and 6) I illustrate a known simple type of three speed gear. The three fixed wheels 7) are applied on the auxiliary shaft 70 which carries the worm Z2 and the three fiXable wheels 0 are applied on the main driving shaft A sliding spring key is recessed into the driv ing'shaft q'and is operated by the movable a clutch device consisting of a slidable clutch belt element 3 which is moved against a spring to the fixed clutch element 8 by aboss 8 worked by a draw-bar e and connected lever 8 This lever 8 has aprojection fitting a recess in the framing. If the draw-bar s be pulled out the projection emerges from the recess, and the boss 8 pushes the movable half of the clutch into gear. Opposite actuation of the draw-bar s puts the clutch out of gear and so the apparatus stops.

' Itis apparent that stoppage of the whole apparatus can be effected either by disengagement of the clutch element 8 or stoppage of the anvil a only by disengagement of the variable speed gear.

A balance weight n and cord a keep the fulcrumed lever 72, up tothe bowl 7' and the bowl j of the guided rod structure j, j against the edge of the cam is.

Arrangements'for locating the blows upon or distributed in varied pattern according toany known system and over a small area or over a larger area according to requirements as the beating work proceeds, a step by step movement or adjustment of the supported bcaters pad or the hammer or both automatically occurring after each blow.

Referring to the diagrams Figs. .7 and 8, there 24 blows-are intended to be struck for one round of the heaters pad;

The cammotion is synchronized to" move with the anvil. As the lever h is about twice the length of the distance from the fulcrum it to the bowl 7' any movement imparted by j to the top of the lever ILNVOUld be twice the amount due to the action of the segmental rise on the cam. If the cam contour from A to B rises inch then the mov-ement'from A to B on the beaters pad would be 1 inches (see the diagram Fig. 8). FroinB to C the fall is inch and from C to D the rise'is 4 inchand from D to E the fall is 4 inch whils't'the rise from E to F is inch. Thus, the distribution of a range of six blows to a quarter of a round are in co-relationship. This explanation covers a quarter revolution of the cam K and the anvil."

The cut-away portions is may be provided in the lever 70 to negative all distributive motion on the-initial startof the beating or later, itbeing common practice to first deliver a number of blows in the centre of the beaters pad. As the lever it by C and E, and, as the lever 71. continues to. A

rise the blows continue to spread over an enlarged area of the be'aters pad, but in fixed relationship to each other and as governed by the manner in which the cam and variable speed gearinfluence the lever h.

It is to be observed that the use of. a variable speed gear gives me increased control in the distribution of the blowsv as with a cam or profile plate having a definite con- A slow speed means it strikes whilst a quick speed means a maximum influence from the cam in a given space of time. It the gear for example be altered from striking 24 blows to strike 12 the ell'ect would be each alternate blow is cut out and only blows A, C, E given. By variation in the gears the range or distribution of the blows is correspondingly changed.

scribed, comprising in combination, a rotat-' able work support, means for rotating said support, a hammer mounted for vertically swinging and laterally reciprocating movement above said-support, means for swinging said. hammer, a pivoted lever for imparting lateral motion to the hammer, means for swinging said lever thereby to move the hammer laterally, and means for changing the ratio oil? distance between the fulcrum of the lever, the point of application of the swinging means and the point of application of the lever thereby to multiply the action or said lever-swinging means.

2. An apparatus of the character described, comprising in combination, a rotatable work support, means for rotating said support, a hammer mounted for vertically swinging and laterally reciprocating movement above said support, means .for swinging said hammer, a pivoted lever for imparting lateral motion to the hammer, means antomatically operative during the rotation of the work support for changing the ratio of distance between the fulcrum of the lever,

the point of application of the swinging meansand the point of application of the lever thereby to multiply the action of said lever-swinging means when transmitted to the hammer for moving it in one direction, and manually operable means for re-establishing the initial ratio of distance between said points for moving the hammer laterally in the opposite direction. I

An apparatus of the character described, comprising in combination, a. rotatable work support, means forv rotating said support, ahammer mounted for vertically swinging and laterally reciprocating movement above said support, means for swinging said hammer, a pivoted lever for impartmg lateral. motion to the hammer, a rotati able cam operated by said rotating means torsw iigmg said lever thereby to move the hammer laterally, and means for changing the ratio of distance between the fulcrum of the lever, the point of application of the cam and the point of application of the lever thereby to multiply the motion imparted by said cam. 7

4. An apparatus of the character described, comprising in combination, a rotatable work support, means for rotating said support, a hammer mounted for vertically.

swinging and laterally reciprocating movement above said support, means for swinging said hammer, a pivoted leverfor imparting lateral motion'to the hammer, a rotatable cam operated'by said rotating means for swinging said lever thereby to move the hammer laterally, means for changing the ratio of distance betweenthe fulcrum of the lever, the point of application of the cam and the point of application of the lever thereby to multiply the motion imparted by the cam, and means also operated by the rotating means and automatically operative to impart to said motion multiplying lever a step-by-step increase in its multiplying ratio.

In testimony whereof I have signed my name to this specification.

WILLIAM BLACKER. 

